import { AnnotationsMarkerConfig, NumericalMarkerProps, TimeMarkerProps } from '../types/annotations-marker-props.js';
/**
 * Identify whether a marker has numerical data
 * @param marker -
 */
export declare const isNumericalMarker: (marker: TimeMarkerProps | NumericalMarkerProps) => marker is NumericalMarkerProps;
/**
 * Identify whether data contains numerical values
 * @param markers -
 */
export declare const isNumericalData: (markers: AnnotationsMarkerConfig[]) => boolean;